Grade 7 Math · Probability

Determine and compare the theoretical and experimental probabilities of two independent events happening and of two dependent events happening

30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.

Start the 30 questions Curriculum: G7-D2.2

Sample: the first question, solved

What is the theoretical probability of flipping heads on a single fair coin flip?

📘 Worked solution
1/2.

And one from the hard end

Design a comparison: a spinner-based independent event has theoretical probability 1/8, while a card-drawing dependent event (without replacement) has theoretical probability 1/10. After 240 trials of each, predict the expected count for both, and explain which theoretical probability would need MORE trials to reliably confirm experimentally.

Solution shown after you try it in practice mode.

Work through all 30, easiest to hardest

Your Winny Score tracks you as the questions ramp up. Stuck on one? A real Winny Math tutor will walk you through it. First lesson free.

Start practicing